Abstract: An aircraft motive flow line includes an outer tube made out of a first material and an inner tube extending longitudinally inside the outer tube. The inner tube is made out of a second material having a thermal conductivity coefficient lower than that of the first material. The first material has a strength coefficient greater than that of the second material. The inner tube is sized and held in position relative to the outer tube so as to define a gap between an exterior of the inner tube and an interior of the outer tube. A port fluidly connects an interior of the inner tube to the gap.

Abstract: A drive of a rail vehicle includes two drive wheels and a wheel set shaft which connects the drive wheels for rotation about an axis. A dynamoelectric machine includes a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis. A transmission connects the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit. Placed between the dynamoelectric machine and the transmission is a coupling which is configured for direct attachment of a brake disk of a braking apparatus which is arranged between the transmission and the dynamoelectric machine.

Abstract: This disclosure is directed to a traction motor drive system. The traction motor drive system may include a field winding subsystem comprising a field winding associated with a traction motor. The traction motor drive system may also include an armature subsystem arranged in parallel with the field winding subsystem. The armature subsystem may include an armature having first and second armature terminals and a grid resistor selectively electrically coupled in series with the armature. The armature subsystem may also include an armature chopper arranged in parallel with the grid resistor and electrically coupled in series with the armature. The armature chopper may be configured, when the grid resistor is electrically coupled to the armature, to conditionally conduct current to the armature.

Abstract: A method of manufacturing a power contactor from an existing contactor having a magnetic amplifier that comprises a blowout coil and a ferromagnetic core, and an arc chute for extinguishing an arc generated by opening the existing contactor under a current load is disclosed. The method includes removing a bolt assembly from the existing contactor and at least one side plate from the existing contactor. The method also includes removing the ferromagnetic core from the existing contactor.

Abstract: A traction motor drive system includes a plurality of armatures arranged in parallel with each other and a plurality of field circuits arranged in series with one another. The plurality of field circuits is arranged in parallel with the armatures. The traction motor drive system also includes a field isolation system including a shunt circuit associated with at least one field circuit. The field isolation system includes a first field switch arranged in series with the plurality of field circuits and configured to switch between a first terminal of the shunt circuit and a first field terminal of at least one field circuit. The field isolation system includes a second field switch, arranged in series with the plurality of field circuits and configured to switch between a second terminal of the shunt circuit and a second field terminal of at least one field circuit.

Abstract: This disclosure is directed to a traction motor drive system. The traction motor drive system may include a field winding subsystem comprising a field winding associated with a traction motor. The traction motor drive system may also include an armature subsystem arranged in parallel with the field winding subsystem. The armature subsystem may include an armature having first and second armature terminals and a grid resistor selectively electrically coupled in series with the armature. The armature subsystem may also include an armature chopper arranged in parallel with the grid resistor and electrically coupled in series with the armature. The armature chopper may be configured, when the grid resistor is electrically coupled to the armature, to conditionally conduct current to the armature.

Abstract: A relay for a toy track set, the relay having, a first actuator in a first plane; a second actuator in a second plane vertically elevated from the first plane; a conduit fluidly coupling the first actuator to the second actuator; and a release mechanism moveably secured to the first actuator for movement between a first position and a second position wherein movement of the release mechanism from the first position towards the second position causes the first actuator to force a fluid through the conduit, wherein the fluid forced through the conduit by the first actuator causes the second actuator to actuate a second release mechanism, wherein the first actuator is coupled to a first vehicle track segment and the second actuator is coupled to a second vehicle track segment.

Abstract: Disclosed herein is a relay for a toy track set, the relay having: a first actuator; a second actuator; an object coupling the first actuator to the second actuator, the object being releasably received on the first actuator and the object has a mechanism configured to retract a cord into the object, the cord being secured to the second actuator at one end and the mechanism at the other end; a trigger moveably secured to the first actuator for movement between a first position and a second position wherein movement of the trigger from the first position towards the second position actuates the mechanism of the object and the object moves towards the second actuator as the mechanism of the object retracts the cord into the object; and a trigger moveably secured to the second actuator for movement between a first position and a second position wherein movement of the trigger from the first position towards the second position launches an object from the second actuator, wherein the trigger secured to the second

Abstract: A relay for a toy track set, the relay having a first actuator, a second actuator and a conduit fluidly coupling the first actuator to the second actuator. The first actuator having a release mechanism moveably secured thereto for movement between a first position and a second position wherein movement of the release mechanism from the first position towards the second position causes the first actuator to force a fluid through the conduit, wherein the fluid forced through the conduit by the first actuator causes the second actuator to actuate a second release mechanism.

Abstract: An apparatus and a method of mounting a standard size power generating unit (30) to any one of several different sized railroad cars utilizes different sized interface blocks (28) to mate the unit to the bearing adapter blocks (14) of the cars. The axle (32) of the car includes a projection (18) extending from an end (16) thereof and the power generating unit (30) includes a frame (50) and a rotor arranged for rotation in the frame for generating the power. A drive shaft (74) is attached to the rotor and includes a follower (78) for engaging the projection (18) so that when the axle is rotated about the axis (44), the projection engages the follower and thereby rotates the rotor. The interface block (28) is disposed between the frame (50) and the bearing adapter block (14), a first surface (54) of the interface block being attached to the bearing adapter block (14) and the frame (50) being attached to a second surface (56) of the interface block opposite the first surface.

Abstract: A motor comprising an axle adapted to rotate about an axis; a wound armature fixed to and concentric with the axis; two segmented wheel commutators adapted to conduct electricity across a set of tracks and fixed on opposite ends of the axle concentric with the axis, a motor casing surrounding and enclosing the armature; and a pair of permanent magnets attached opposite one another on the sides of the casing. A pair of bearings with a plurality of wire channels may be fixed to the axle and adapted to rotate with the axle in each casing end cap, each wire channel adapted to pass a wire electrically connected to a segment in one wheel commutator, running across the armature, and connected to a segment of the opposite wheel commutator. Each wheel may consist essentially of conductive segments separated by nonconductive epoxy, with a non-conductive bushing centered therein to receive the axle.

Abstract: A mounting assembly secures a generator and facilitates attachment to a railroad railcar on the end of the railcar axle. The generator produces electricity from the axle of a railroad railcar while it is traveling on a railroad track. A generator is mounted with a generator bracket and a backing plate to an existing bearing adapter on the railcar. A drive hub engages axle bolts on the railcar axle. As the railcar axle turns, the drive hub turns and with the drive hub connected to a generator the generator subsequently rotates to supply electricity to the railcar. Different types of generators can be attached with the mounting assembly to the railcar. The mounting assembly allows generators to be mounted without modification to the existing railcar structure.

Abstract: Invention relates to an on-board electrical generator system that may be retrofitted to existing railroad vehicles, such as freight cars, box cars, and the like, where rotation of the vehicle's axle powers the system. A preferred use thereof is to charge the battery for the electrically controlled brakes on the vehicle. Such vehicles typically include a chassis, having plural axles mounted thereon, and a journal box or adaptor block having a projection generally aligned parallel with the axles. Each axle contains a pair of wheels, which are inwardly mounted from the respective axle ends and rotatable with the axle. The generator includes a rotor fixed for rotative movement relative to a stationary stator, whereby such relative movement causes electric currents to be generated in the stator containing the generator in a non-rotatable housing.